Merge pull request open-source-parsers#670 from cdunn2001/fix-travis

Fix travis

Author: cdunn2001

.travis.yml

@@ -6,6 +6,7 @@
 # http://stackoverflow.com/questions/22111549/travis-ci-with-clang-3-4-and-c11/30925448#30925448
 # to allow C++11, though we are not yet building with -std=c++11
 
+before_install: pyenv global 3.5
 install:
 - if [[ $TRAVIS_OS_NAME == osx ]]; then
      brew update;
@@ -38,7 +39,6 @@ addons:
     - g++-4.9
     - clang-3.5
     - valgrind
-    - python3
 os:
   - linux
 language: cpp